Unreal 4.4.3 SetRes doesn't work

Development Programming & Scripting
1

I am in the process of making a game and I want to make sure that users can set the resolution of the game in case their computer can’t handle the resolution of the monitor that they are playing on, but I can’t get the resolution to update and stay updated.

For instance, if I launch the game as a standalone and run the code

GSystemResolution.RequestResolutionChange(800, 600, EWindowMode::Fullscreen);

The game will launch in standalone windowed mode with the resolution equivalent to 800x600, but the actual size of the window will only take up ~25% of my 1080p monitor. The second I click the fullscreen button in the corner, the game is made fullscreen and the resolution jumps to 1080p. How can I prevent that? Is this an issue with 4.4.x?

I have also tried just running the console command

r.setRes 800x600f

and

setRes 800x600f

And neither command works properly. The game is always played at 1080p when in fullscreen mode.

How can I fix this? Am I doing something wrong?